Tektronix 1710J Series, Instruction Manual

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Glossary
1710J-Series Waveform Monitors
Glossary–3
Setup Level (NTSC)
The difference between the blanking level and the reference black level.
Normally 7.5% (7.5 IRE) is the amount of setup employed.
Staircase Signal
A video test signal containing several steps of equal amplitude at increasing
luminance levels. The staircase signal is usually amplitude modulated by a
subcarrier frequency and is useful in checking amplitude and phase
linearities in the video system.
Sync, Horizontal (Line Rate)
A pulse signal occurring at the line rate of the television scanning system
that is used to stop and start horizontal scanning.
Sync, Vertical (Field Rate)
A pulse signal occurring at the field rate of the television scanning system
that is used to stop and start vertical scanning. This signal consists of a
serrated block pulse surrounded by horizontal equalizing pulses, which occur
at twice the horizontal sync rate.
Sync Stripper
A circuit whose function is to remove the synchronizing components from
the composite television signal and deliver the synchronizing pulses to the
display circuits.
Vertical Interval
The period of time during which the display device performs vertical retrace.
This interval contains the vertical synchronizing pulse and the horizontal
equalizing pulses.
Waveform Monitor
A specialized oscilloscope that is triggered by either horizontal or vertical
sync pulses to display a time versus amplitude display of television signal
elements.
White Level
The picture signal level corresponding to a specified limit for the white
peaks.